svn commit: r242402 - in head/sys: kern vm

[Attilio Rao]

On 11/1/12, Gleb Smirnoff <glebius at freebsd.org> wrote:
> On Wed, Oct 31, 2012 at 06:33:51PM +0000, Attilio Rao wrote:
> A> > Doesn't this padding to cache line size only help x86 processors in an
> A> > SMP kernel?  I was expecting to see some #ifdef SMP so that we don't
> pay
> A> > a big price for no gain in small-memory ARM systems and such.  But
> maybe
> A> > I'm misunderstanding the reason for the padding.
> A>
> A> I didn't want to do this because this would be meaning that SMP option
> A> may become a completely killer for modules/kernel ABI compatibility.
>
> Do we support loading non-SMP modules on SMP kernel and vice versa?

Actually that's my point, we do.

Attilio


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